summary 1-kernel documentation .txt file if not available in path usr/src/kernel/kernel version/documentation then search online http:kernel.org/doc 2-prototype of unlocked ioctl is in fs.h file 3-_IO _IOR etc is available in path usr/src/kernel/kernel version/include/uapi/asm-generic -ioctl.h 4.in user space second arrgument of … Continue reading →

—————————- revision 1.3 date: 2016/03/11 17:34:14;  author: root;  state: Exp;  lines: +5 -0 *** empty log message *** —————————- revision 1.2 date: 2016/03/11 17:29:28;  author: root;  state: Exp;  lines: +1 -1 *** empty log message *** —————————- revision 1.1 date: … Continue reading →